Interesting chart showing the rate of job losses under Bush and Obama, from Organizing for America:

http://my.barackobama.com/page/content/recoveryanniversary/

Since Truman was elected in 1948, 53.2 million new jobs were created during the 24 years when Democrats held The White House, and 38.3 million were created during the 36 years of Republican administrations. Check it out for yourself: